The Middle and Upper Ordovician Strata of the Upper Mississippi Valley Allen F. Agnew Published: 1949 Total Pages: 408 Get eBook
Middle and Late Ordovician Lithostratigraphy and Biostratigraphy of the Upper Mississippi Valley Published: 1987 Total Pages: 252 Get eBook
Stratigraphy of the Lower Ordovician New Richmond Sandstone in the Upper Mississippi Valley James H. Shea Published: 1960 Total Pages: 300 Get eBook
Facets of the Ordovician Geology of the Upper Mississippi Valley Region Greg A. Ludvigson Published: 2005 Total Pages: 142 Get eBook
Middle and Upper Ordovician Nautiloid Cephalopods of the Cincinnati Arch Region of Kentucky, Indiana, and Ohio Robert C. Frey Published: 1995 Total Pages: 180 Get eBook
The Sedimentology and Sequence Stratigraphy of the Middle Ordovician Glenwood Formation in the Upper Mississippi River Valley Jennifer Lien Published: 1998 Total Pages: 362 Get eBook
New Evidence of Early Ordovician Tectonism in the Upper Mississippi Valley Gerald A. Miller (Ph. D.) Published: 1978 Total Pages: 478 Get eBook
Paleozoic sequence stratigraphy; views from the North American Craton Brian J. Witzke Published: 1996-01-01 Total Pages: 453 Get eBook
The Geology of the Upper Mississippi Valley Zinc-lead District Allen Van Heyl Published: 1959 Total Pages: 332 Get eBook
Correlation of Cambrian Strata of the Ozark and Upper Mississippi Valley Regions Wallace Brady Howe Published: 1972 Total Pages: 60 Get eBook
